Daikin E Series, Service Manual

Page: 83 / 453

Refrigerant Flow for Each Operation Mode SiAU18-715
70 Refrigerant Circuit
3. Refrigerant Flow for Each Operation Mode
3.1 Cooling Operation
EV
H
: Full close
EV
C
: Full close
EV
B
: SH control
OUTDOOR UNIT
EXP
ANSION V
A
L
V
E
(BYP
ASS
)
FIL
TER
FIL
TER
ELECTRONIC
EV
H
EXP
ANSION V
A
L
V
E
(ROOM A
)
EXP
ANSION V
A
L
V
E
(ROOM B
)
EXP
ANSION V
A
L
V
E
(ROOM C
)
ELECTRONIC
ELECTRONIC
ELECTRONIC
EV
C
EV
B
EV
A
FIL
TER
FIL
TER
FIL
TER
THERMIST
OR
(DGC
)
THERMIST
OR
(DGB
)
THERMIST
OR
(DGA
)
THERMIST
OR
(DLC
)
THERMIST
OR
(DLB
)
THERMIST
OR
(DLA
)
GAS SIDE GAS SIDE GAS SIDE
LIQUID SIDE LIQUID SIDE LIQUID SIDE
EXP
ANSION V
A
L
V
E
(BYP
ASS
)
FIL
TER
FIL
TER
ELECTRONIC
EV
H
EXP
ANSION V
A
L
V
E
(ROOM A
)
EXP
ANSION V
A
L
V
E
(ROOM B
)
ELECTRONIC ELECTRONIC
EV
A
EV
B
FIL
TER
FIL
TER
THERMIST
O
R
(DLA
)
THERMIST
O
R
(DLB
)
THERMIST
OR
(DGA
)
THERMIST
OR
(DGB
)
GAS SIDE GAS SIDE
LIQUID SIDE LIQUID SIDE
EXP
ANSION V
A
L
V
E
(BYP
ASS
)
FIL
TER
FIL
TER
ELECTRONIC
EV
H
EXP
ANSION V
A
L
V
E
(ROOM A
)
EXP
ANSION V
A
L
V
E
(ROOM B
)
ELECTRONIC ELECTRONIC
EV
A
EV
B
FIL
TER
FIL
TER
THERMIST
O
R
(DLA
)
THERMIST
O
R
(DLB
)
THERMIST
OR
(DGA
)
THERMIST
OR
(DGB
)
GAS SIDE GAS SIDE
LIQUID SIDE LIQUID SIDE
FIELD PIPING
FIELD PIPING
SIRROCO F
A
N
F
AN MOT
OR
M
HEA
T EXCHANGER
M M
M
M M M
BP
UNIT
(Q0520)
EV1
480 pls
EV3
PI control
SVP
OFF
EV
A
: Full close
EV
H
: Full close
EV
B
: Full close
EV
H
: Full close
EV
B
: Full close
EV
A
: SH control
EV
A
: SH control
: High pressure liquid refrigerant : High pressure high temp. gas refrigerant : Low pressure low temp. liquid or gas refrigerant
FIELD PIPING
FIELD PIPING
SIRROCO F
A
N
F
AN MOT
O
R
HEA
T EXCHANGER
FIELD PIPING
FIELD PIPING
SIRROCO F
A
N
F
AN MOT
O
R
HEA
T EXCHANGER
FIELD PIPING FIELD PIPING
SIRROCO F
A
N
F
AN MOT
O
R
HEA
T EXCHANGER
FIELD PIPING FIELD PIPING
SIRROCO F
A
N
F
AN MOT
O
R
HEA
T EXCHANGER
FIELD PIPING
FIELD PIPING
SIRROCO F
A
N
F
AN MOT
O
R
HEA
T EXCHANGER
FIELD PIPING
"OFF" "OFF" "OFF" "OFF"
"ON" "ON" "ON"
FIELD PIPING
SIRROCO F
A
N
F
AN MOT
O
R
HEA
T EXCHANGER
LIQUID LINE
ST
OP
V
A
L
V
E
GAS LINE
ST
OP
V
A
L
V
E
HEA
T
EXCHANGER THERMIST
OR
HEA
T
EXCHANGER THERMIST
OR
HEA
T
EXCHANGER THERMIST
OR
HEA
T
EXCHANGER THERMIST
OR
HEA
T
EXCHANGER THERMIST
OR
HEA
T
EXCHANGER THERMIST
OR
HEA
T
EXCHANGER THERMIST
OR
HEA
T
EXCHANGER THERMIST
OR
HEA
T
EXCHANGER THERMIST
OR
HEA
T
EXCHANGER THERMIST
OR
HEA
T
EXCHANGER THERMIST
OR
HEA
T
EXCHANGER THERMIST
OR
HEA
T
EXCHANGER THERMIST
OR
HEA
T
EXCHANGER THERMIST
OR
OIL
SEPARA TO R
SV
HPS
SV
SER
VICE POR
T
ELECTRONIC EXP
ANSION V
A
L
V
E
HIGH PRESSURE SWITCH
FIL
TER
PRESSURE REGULA
TING V
A
L
V
E
FIL
TER
LOW PRESSURE SENSOR
CAPILLAR
Y
TUBE
FIL
TER
CAPILLAR
Y
TUBE
FOUR W
A
Y
VA
LV
E
FIL
TER
FIL
TER
SOLENOID VA
LV
E
SP
CAPILLAR
Y
TUBE
SOLENOID VA
LV
E
SP
HEA
T
EXCHANGER
COMPRESSOR
ELECTRONIC EXP
ANSION V
A
L
V
E
SER
VICE
POR
T
HIGH PRESSURE SENSOR
DOUBLE PIPE HEA
T
EXCHANGER
ACCUMULA
T
O
R